Journal of Krishi Vigyan

In present study, three early maturing clones CoPb 08211, CoPb 08212, CoS 08233 and two standards viz., CoJ 64 and CoPant 84211 were evaluated in three crop cycles (I and II Plant crop and ratoon crop) at seven locations in North West Zone during 2012–14. Data on CCS (t/ha), cane yield (t/ha) and sucrose (%) were subjected to stability analysis using AMMI model and simultaneous selection of high yielding and stable clones was done by estimated index value based ranking. Based on index of simultaneous selection of high CCS (t/ha) and stable clones, it was found that the standard CoJ 64 and clones CoPb 08212 and CoS 08233 were at first, second and third rank, respectively. Considering top two high CCS (t/ha) and stable clones, CoPb 08212 and CoS 08233 were superior, but inferior to the standard CoJ 64. Results based on stability value and rank based on estimated value for high cane yield (t/ha) revealed that entries CoPb 08212 (80.39 t/ha) and CoS 08233 (76.02 t/ha) were at first and second rank, respectively and better than both the standards CoJ 64 and CoPant 84211. Simultaneous selection based on high sucrose (%) and stability revealed that the clones CoPb 08212 (18.10%), CoPb 08211and CoS 08233 were at first, second and third rank, respectively. All these clones were better than both the standards used. From the above analysis, it may be concluded that the entries CoPb 08212 and CoS 08233 were stable clones with high yield and sucrose (%) in early maturity group of North West Zone.